98results about "Burner material specifications" patented technology

A total primary combustion burner which includes a burner body with an air-fuel mixture chamber into which an air-fuel mixture of a fuel gas and primary air is supplied, a combustion plate portion covering an opening surface, which faces the air-fuel mixture chamber, of the burner body, and a backfire suppressing plate portion disposed opposite the combustion plate portion with a gap inside the air-fuel mixture chamber. The air-fuel mixture passing through the backfire suppressing plate portion ejects from the combustion plate portion and undergoes combustion. The total primary combustion burner is configured so that backfire can be suppressed as much as possible while suppressing pressure loss, even when using hydrogen as the fuel gas. The backfire suppressing plate portion has a sintered sheet obtained by sintering a laminate made by sintering an aggregate of metallic fibers or beads.

A combustion membrane (14) for a gas burner (2) comprises a fabric or mesh (21) of interlaced metal threads (22), having two opposite interlacing surfaces (19, 20) which form a combustion surface (19) and an inner surface (20) of the fabric / mesh (21), respectively, wherein the metal threads (22) are formed by twisted metal fibers (22) to form a yarn and:the individual metal fibers (22) are shorter than the yarn (22) formed therefrom, and free ends (22″) of the metal fibers (22) protrude divergently from the yarn (22) along its longitudinal extension and make the yarn (22) hairy, andthe metal thread (22) is a yarn (22) of mass per length in the range from 0.8 g / m to 1.4 g / m.

An apparatus for generating electricity via thermophotovoltaic (TPV) energy conversion is described. High efficiency is obtained by introducing a material into a combustion chamber that emits bright near-monochromatic visible light upon heating. This light is then directed to fall on an array of photovoltaic (PV) cells which convert the light to electricity. Heat and infrared radiation that is not absorbed by the PV cells is returned to the combustion chamber to further improve conversion efficiency.

To significantly improve the combustion of a fuel gas containing at least 95% hydrogen by volume in a gas burner (10) for heating purposes, a burner body (16) for the gas burner (10) has been proposed, which, as a burner surface (38) for the passage of a premixed fuel gas-air mixture into a combustion chamber (14), has a perforated metal surface (40) which has through holes (48) such that less than 5% of the burner surface (38) is open. wherein the through holes (48) have hole diameters D with 0.4 mm ≤ D ≤ 1.0 mm, wherein the hole diameters D and / or hole lengths of the through holes vary.

This invention relates to a heat exchanger type burner base unit (100), comprising: a burner base (1) having: a burner air inlet for supplying burner air, an exhaust gas inlet for drawing exhaust gas, and a combustion gas inlet; a heat exchanger (20) connected to the burner base (1) having a heat exchanger body (21), the heat exchanger body (21) having at least two separate flow channels for guiding counter-flowing fluids, and the heat exchanger body (21) further having an inner cavity (27) for forming or guiding through at least one combustion gas conduit (31, 32); characterized in that the burner base (1) is designed as a flat burner base element (10) or includes a flat burner base element (10). 0); the burner base element (10) includes at least one gas passage opening (14) and / or at least one gas passage opening (13) and / or at least one opening, the at least one gas passage opening (14) being used to connect the burner air interface (33) to a flow passage in the heat exchanger (20), the at least one gas passage opening (13) being used to connect the exhaust gas interface (34) to one of the flow passages, and the at least one opening being used to connect to the combustion gas interface (31, 32); a flat support surface (10.3) is provided on the front side (10.1) of the burner base element (10) facing the heat exchanger (20) for connection; and the heat exchanger is integrally connected to the support surface (10.3).

A pilot unit for an abatement apparatus and a method are disclosed. The pilot unit is for an abatement apparatus configured to abate an effluent stream from a semiconductor processing tool, the pilot unit comprises: a housing retaining a foraminous pilot surface, the housing and foraminous pilot surface defining a plenum which is configured to convey fuel and oxidant from a corresponding housing inlet and through that foraminous pilot surface; and an ignitor configured to ignite the fuel and oxidant when exiting the foraminous pilot surface. In this way, rather than having an ignition flame combusting from a nozzle, an ignition flame is provided across the foraminous pilot surface which provides for a more reliable ignition source for the abatement apparatus.

A total primary combustion burner which includes a burner body 1 with an air-fuel mixture chamber 11 into which an air-fuel mixture of a fuel gas and primary air is supplied, a combustion plate portion 2 covering an opening surface 12, which faces the air-fuel mixture chamber, of the burner body, and a backfire suppressing plate portion 3 disposed opposite the combustion plate portion with a gap inside the air-fuel mixture chamber. The air-fuel mixture passing through the backfire suppressing plate portion ejects from the combustion plate portion and undergoes combustion. The total primary combustion burner is configured so that backfire can be suppressed as much as possible while suppressing pressure loss, even when using hydrogen as the fuel gas. The backfire suppressing plate portion has a sintered sheet 33, 5 made by sintering an aggregate of metallic fibers or beads.

The present invention relates to a parting sheet (1200) for a burner (1000), to a burner and to methods of manufacturing the same, wherein the parting sheet (1200) is configured to be arranged in or to be manufactured in a cavity (1120) inside a wall (1110) of the burner (1000) for flowing a cooling fluid through the wall of the burner, the parting sheet (1200) comprising a sheet element (1210) and a number of baffle elements (1220, 1230, 1240), wherein each of these baffle elements (1220, 1230, 1240) is provided at a predetermined position on a surface of the sheet element (1210) inclined by a predetermined angle (1221, 1231) towards the sheet element.

Disclosed are a fire grate and a gas device. The fire grate includes a casing, a combustion cover and a metal mesh. An airflow channel is formed inside the casing. The combustion cover is provided at the top portion of the casing, and is provided with a plurality of first fire apertures communicating with the airflow channel. A plurality of first rivet parts are provided at the top surface of the combustion cover. The metal mesh is provided at the upper surface of the combustion cover, and covers the plurality of first fire apertures. The plurality of first rivet parts press and fix the metal mesh to the upper surface of the combustion cover.

A combustor and a water heater using the same. The combustor (10) comprises a plurality of flame distributors (100) which are arranged side by side in the width direction, each flame distributor (100) comprises at least three ejection tubes (110), and each ejection tube (110) is sequentially provided with an ejection section (110A) and an gas outlet section (110B) along the gas flow direction. Each ejection tube (110) comprises a throat (114) and a diverter (112). The throat (114) is provided at the minimum cross-section of the ejection section (110A), the length of the ejection section (110A) is H1, and the maximum width of the throat (114) allowing gas to pass is D1, wherein 8.5D1≤H1≤9.5D1. The diverter (112) is provided in the gas outlet section (110B) and has a top corner (112C) for diverting gas to two sides, and the angle of the top corner (112C) is 45 degrees to 85 degrees.

The invention relates to a recuperator burner base unit (100), comprising: - a burner base (1) having - a burner air port for supplying burner air,- an exhaust gas port for suctioning exhaust gas and - a combustion gas port;- a recuperator (20) connected to the burner base (1) and having a heat transfer body (21) which has separate throughflow channels provided for guiding counterflowing fluids and further has an inner cavity (27) for forming or guiding through a combustion gas line (31, 32); characterised in that - the burner base (1) is designed as a flat burner base element (10) or comprises same, - the burner base element (10) comprises at least one gas guide-through opening (14) for connecting the burner air port (33) to one of the throughflow channels in the recuperator (20) and / or at least one gas guide-through opening (13) for connecting to the exhaust gas port (34) to one of the throughflow channels and / or at least one opening for connection to the combustion gas port (31, 32), - at a front side (10.11) of the burner base element (10) intended for connection to the recuperator (20), a planar support surface (10.3) is provided; and the recuperator is integrally connected to the support surface (10.3).

A powder coated aluminum barbecue pit burner that burns gas in the same way that stainless steel burner tubes do, but last longer and do not rust. The use of powder coated aluminum makes the burner according to the present invention corrosion resistant. Additionally, the powder coated aluminum burner of the present invention also contain a heat sink element that prevents the temperature of the tubes from getting too high. Controlling temperature and using powder coated aluminum burners, instead of stainless steel, ensures that the burner will last longer. Another embodiment utilizes a water cooled system in connection with the heat sink element.

A component (10) of a gas burner (2) or an article placed above and / or near a gas burner (2), characterized in that said component (10) and / or article comprises a core of molten silica glass and at least one coating comprising an electrically conductive material.

To suppress back fire as much as possible while suppressing pressure loss even in a case when a fuel gas is a hydrogen gas, in an all primary combustion burner which includes a burner body 1 having an air-fuel mixture chamber 11 to which the air-fuel mixture of the fuel gas and primary air is supplied, and a combustion plate portion 2 covering an opening face 12 of the burner body facing the air-fuel mixture chamber, and in which a back fire suppression plate portion 3 opposed to the combustion plate portion at an interval is disposed, and the air-fuel mixture passing through the back fire suppression plate portion is injected from the combustion plate portion to be burned.SOLUTION: A back fire suppression plate portion has a sintered compact sheet 33 obtained by sintering a laminate on which metallic fiber or metallic beads are laminated.SELECTED DRAWING: Figure 4

A combustor (100; 200) for a gas turbine engine (20) includes a liner (102; 202) surrounding a fuel and air mixing body (104; 204). A fuel supply passage (118; 218) communicates into an open fuel plenum (120; 220) downstream of the fuel supply passage (118; 218). A wall (199; 299) of the mixing body (104; 204) has air openings (106; 206) to receive air flow, and communicate air into mixing passages (107; 207). The mixing passages (107; 207) pass through the fuel plenum (120; 220). Fuel openings (122; 222) in the mixing passages (107; 207) allow fuel to flow from the mixing passage and mix with the air. There are passage sections (108; 208) extending downstream of the fuel plenum (120; 220), such that the mixed air and fuel travels downstream of the fuel plenum (120; 220) and into a combustion chamber (105; 205). A gas turbine engine (20) is also disclosed.

A combustion system includes a fuel and oxidant source and a flame holder. The flame holder includes a plurality of discrete slats arranged in parallel defining combustion channels between adjacent slats. Pairs of adjacent slats may be oriented to operate substantially as a V-gutter. The fuel and oxidant source outputs fuel and oxidant into the combustion channels. The flame holder holds a combustion reaction of the fuel and oxidant in the combustion channels.

A hydrogen combustion burner utilizing hydrogen gas as a fuel gas includes a burner body 1 with an air-fuel mixture chamber 11 into which an air-fuel mixture of hydrogen gas and primary air is supplied and a combustion plate portion 2 covering an opening surface 12, which faces the air-fuel mixture chamber, of the burner body. In the hydrogen combustion burner, the air-fuel mixture ejects from the combustion plate portion and undergoes combustion. The hydrogen combustion burner is configured to effectively suppress backfire. The combustion plate portion includes a sintered sheet by sintering an aggregate of metallic fibers, and the aggregate is not formed by weaving or knitting the metallic fibers.

A combustion membrane (14) for a gas burner (2) comprises a fabric (21) having two opposite fabric surfaces (19, 20), which form a combustion surface (19) exposed on the outer side (17) and an inner surface (20) facing towards an inner side (18) respectively, wherein the fabric (21) forms an interlacing of metal wires (22) comprising warp threads and weft threads transverse to the warp threads, and wherein both fabric surfaces (19, 20) form ribs (23) in high relief alternating with valleys (24) in low relief and that both the ribs (23) and the valleys (24) have an extension, in at least one direction in the plane of the fabric (21), greater than the space occupied by at least three consecutive warp threads in the weft direction and greater than the space occupied by at least three consecutive weft threads in the warp direction.

A component of a gas burner or an item to be placed over and / or in proximity of a gas burner, includes a core of fused silica glass and at least one coating comprising an electric conductive material.

The invention provides phase boundary coherent refractory alloy and a preparation method and application thereof, and belongs to the field of powder metallurgy. In the phase boundary coherent refractory alloy, coherent phase boundary combination is formed by oxides of second-phase high-melting-point metal and refractory metal, and the oxides of the second-phase high-melting-point metal are distributed in the refractory metal in a dispersed mode. The preparation method comprises the following steps: preparing nano core-shell refractory alloy powder by combining a gel-combustion method with hydrogen reduction, and then rapidly realizing densification by adopting a two-step sintering technology to obtain the phase-boundary coherent refractory alloy. The average particle size of the refractory alloy powder is smaller than 50 nm, the relative density of refractory alloy exceeds 98%, and the grain size is smaller than 1.0 micron. According to the refractory alloy powder with the nano core-shell structure, the densification temperature can be effectively reduced, grain growth is effectively prevented through the two-step sintering technology, the porosity is reduced, the density is improved, and finally the ultrafine grain high-density refractory alloy material with coherent phase interface bonding is obtained.

A porous combustor liner for a gas abatement system is provided. The combustor liner includes a hollow body defined by a wall, the wall including a plurality of interconnected substantially concentric layers. Each layer of the wall includes a substantially regular pattern of voids; wherein the substantially regular pattern of voids of each layer is configured such that it is out of phase with one or more adjacent layers, and wherein the wall includes a sufficient number of layers arranged such that the wall is optically opaque when viewed from the outside along any radially inward direction normal to the wall.

A detoxification device has an inlet nozzle capable of reducing an amount of a deposit of an adhering metallic product and elongating a maintenance cycle and a detoxification device including the inlet nozzle. The inlet nozzle includes a portion adjacent to a combustor, that is cut (removed) in advance. Consequently, in the portion, an insulator made of a ceramic material is exposed. Since the ceramic material supplies a small number of electrons, even when the insulator is exposed to heat from the combustor to reach a high temperature, a reductive reaction is less likely to occur. Accordingly, even when a metallic exhaust gas is allowed to flow, the metallic exhaust gas is prevented from being precipitated as the metallic product and gradually deposited with time.

To provide a whole primary air combustion type burner having excellent lift resistance regardless of the species of fuel gas, and capable of using either of hydrocarbon gas and hydrogen gas, as fuel gas.SOLUTION: The whole primary air combustion gas burner comprises: a burner body having an air-fuel mixture chamber to which an air-fuel mixture of fuel gas and primary air is fed; and a combustion plate covering an open face of the burner body facing the air-fuel mixture chamber. The combustion plate has: a frame-shaped burner frame 21; a sintered body sheet 23 prepared by sintering a laminate obtained by laminating metal fibers and covering an opening of the burner frame from the burner body side; and a distribution plate 24 with a plurality of slit-shaped distribution holes 24a formed thereon, sandwiching the sintered body sheet between itself and the burner frame. A plurality of distribution hole rows each consisting of the plurality of distribution holes arranged at intervals in a Y-axis direction which is a short side direction of the distribution holes are arranged in an X-axis direction which is a long side direction, with slit widths being set in a range of 0.3 mm to 0.6 mm and slit pitches being set in a range of 6 mm to 10 mm.SELECTED DRAWING: Figure 3

A gas burner for caravans, boats or vehicles in general includes an injector holder to be applied in correspondence with an opening intended to be made in a hob of a caravan, boat or vehicle in general. The injector holder includes at least one injector connected to at least one gas inlet. The burner also includes a flame spreader which is positioned above the injector holder and includes at least one duct in fluid communication with the injector and with at least one distribution chamber of the combustible mixture, to generate at least one crown of flames. The burner further includes: a lid, resting on said flame spreader, delimiting the distribution chamber of the combustible mixture at the top; locking means to prevent or limit movement between the flame spreader and the lid and means for magnetically connecting the injector holder with the flame spreader and / or the lid.

A burner and associated methods are disclosed. The burner comprises a housing and a heat shield. The housing comprises an inlet for receiving gas, one or more outlets for expelling gas, and walls forming a gas cavity for directing the gas from the inlet to the outlet. The heat shield comprises a shield layer configured to cover at least a portion of at least one of the walls to thermally insulate the at least one of the walls from heat outside the gas cavity.

A method for fabricating a component of an abatement apparatus is disclosed. The method comprises: meshing a 3D model representation of a component defining a reaction chamber of an abatement apparatus based on specified component characteristics to define an optimised finite element representation of the component; and fabricating the optimised finite element representation. In this way, a 3D model of a component of an abatement apparatus can be generated from which its performance can be modelled. Particular characteristics of the component may be defined which affect the operation of the abatement apparatus. Those characteristics may then be used to generate the optimized finite element representation of the component which has those characteristics using meshing (it will be appreciated that meshing is the operation of representing a geometric object as a set of finite elements). The optimized finite element representation may then fabricated, reliably producing a component having the required characteristics.

recuperator burner base unit (1), at least comprising: - a burner base (1) with at least - a burner air connection (33) for the burner air supply, - an exhaust connection (34) for exhaust gas extraction and - a fuel gas connection (31, 32); - a recuperator (20) adjoining the burner base (1) with a heat transfer body (21) which has at least two separate flow channels provided for guiding counter-flowing fluids and an inner cavity (27) for forming or carrying out the at least one fuel gas line (31, 32); characterized by - that the burner base (1) is designed as a plate-shaped burner base element (10; 10') or comprises one such element, - that the burner base element (10; 10') comprises at least one gas passage opening (14) for connecting the burner air connection (33) to one of the flow channels in the recuperator (20) and / or at least one gas passage opening (13) for connecting to the exhaust gas connection (34) and also at least one opening for connecting to the fuel gas connection (31, 32), - that at least one flat mounting surface (10.3) is provided on a front face (10.1) of the burner base element (10; 10') intended for connection to the recuperator (20); and - that the recuperator is materially bonded to at least one mounting surface (10.3) of the burner base element (10; 10').

A hydrogen combustion burner utilizing hydrogen gas as a fuel gas includes a burner body 1 with an air-fuel mixture chamber 11 into which an air-fuel mixture of hydrogen gas and primary air is supplied and a combustion plate portion 2 covering an opening surface 12, which faces the air-fuel mixture chamber, of the burner body. In the hydrogen combustion burner, the air-fuel mixture ejects from the combustion plate portion and undergoes combustion. The hydrogen combustion burner is configured to effectively suppress backfire. The combustion plate portion includes a sintered sheet by sintering an aggregate of metallic fibers, and the aggregate is not formed by weaving or knitting the metallic fibers.

The present invention provides a head unit for arrangement at an inlet of a combustion chamber of an abatement apparatus The head unit defines an effluent flow conduit configured to direct an effluent gas flow through the head unit. A surface defining the inner face of the effluent flow conduit provides a first section of conduit for directing effluent flow in a first direction and second section of conduit for directing effluent flow in a second direction, and a smooth curved section of conduit between said first section and second section configured to transition the direction of flow of the effluent gas flow from said first direction to said second direction along the length of the smooth curved section.